<template>
    <div>
            <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>权限管理</el-breadcrumb-item>
        <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
        <!-- 添加角色按钮区域 -->
        <el-row>
            <el-col>
                <el-button type="primary" @click="addjuesedialogVisible=true">添加角色</el-button>
            </el-col>
        </el-row>

        <!-- 角色列表区域 -->
        <el-table :data="rolelist" border stripe>
            <!-- 展开列 -->
            <el-table-column type="expand">
                <template slot-scope="scope">
                    <el-row :class="['bdbottom', i1===0 ?'bdtop':'','vcenter']" v-for="(item1,i1) in scope.row.children" :key="item1.id">
                        <!-- 渲染一级权限 -->
                        <el-col :span="5">
                            <el-tag closable  @close="removeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
                            <i class="el-icon-caret-right"></i>
                        </el-col>
                        <!-- 渲染二级和三级权限 -->
                        <el-col :span="19">
                            <!-- 通过for循环，嵌套渲染二级权限 -->
                            <el-row :class="[i2===0 ? '':'bdtop','vcenter']" v-for="(item2,i2) in item1.children" :key="item2.id" >
                                <el-col :span="6">
                                    <el-tag type="success" closable @close="removeRightById(scope.row,item2.id)">
                                        {{item2.authName}}
                                    </el-tag>
                                       <i class="el-icon-caret-right"></i>
                                </el-col>
                                <el-col :span="18">
                                    <el-tag type="warning" v-for="(item3,i3) in item2.children" :key="item3.id"  closable @close="removeRightById(scope.row,item3.id)">
                                        {{item3.authName}}
                                    </el-tag>
                                </el-col>

                            </el-row>
                        </el-col>
                    </el-row>
                  
                </template>
            </el-table-column>
            <!-- 索引列 -->
            <el-table-column type="index"></el-table-column>
            <el-table-column label="角色名称" prop="roleName"></el-table-column>
            <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
            <el-table-column label="操作" width="300px">
                <template slot-scope="scope">
                    <el-button size="mini" type="primary" icon="el-icon-view" @click="showJueseEditDialog(scope.row.id)">编辑</el-button>
                    <el-button size="mini" type="danger" icon="el-icon-remove-outline" @click="removeJueSeById(scope.row.id)">删除</el-button>
                    <el-button size="mini" type="warning" icon="el-icon-s-custom" @click="showSetRightDialog(scope.row)">分配权限</el-button>
                </template>
            </el-table-column>

        </el-table>
    </el-card>
    <!-- 分配角色提示框 -->
    <el-dialog
  title="分配权限"
  :visible.sync="setRightDialogVisible"
  width="50%"
  @close="setRightDialogClosed">
 <!-- 树形控件 -->
  <el-tree :data="rightslist" :props="treeProps"  ref="treeRef"  show-checkbox node-key="id" default-expand-all :default-checked-keys="defKeys"></el-tree>

  <span slot="footer" class="dialog-footer">
    <el-button @click="setRightDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="allotRights">确 定</el-button>
  </span>
    </el-dialog>
    <!-- 添加角色提示框 -->
    <el-dialog
        title="添加角色"
        :visible.sync="addjuesedialogVisible"
        width="50%"
        @close="addDialogClosed"
        >
         <!-- 内容主体区 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="90px" class="demo-ruleForm">
            <el-form-item label="角色名称" prop="roleName">
                <el-input v-model="addForm.roleName"></el-input>
            </el-form-item>
            <el-form-item label="角色描述" prop="roleDesc">
                <el-input v-model="addForm.roleDesc"></el-input>
            </el-form-item>
           
            </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="addjuesedialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addJuese">确 定</el-button>
        </span>
    </el-dialog>
    <!-- 编辑角色提示框 -->
    <el-dialog
  title="编辑角色信息"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClosed">
  <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="80px">
 <!-- 内容主体区 -->
           
            <el-form-item label="角色名称" prop="roleName">
                <el-input v-model="editForm.roleName"></el-input>
            </el-form-item>
            <el-form-item label="角色描述" prop="roleDesc">
                <el-input v-model="editForm.roleDesc"></el-input>
            </el-form-item>
           
            </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editjueseInfo">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>
<script>
export default {
    data(){
        return {
            //所有角色列表数据
            rolelist:[],
            rightslist:[],
            setRightDialogVisible:false,
            //树形控件的属性绑定对象
            treeProps:{
                label:'authName',
                children:'children'
            },
            defKeys:[],
            // 当前即将分配权限的角色id
            roleId: '',
              //添加角色判断值
            addjuesedialogVisible:false,
            //添加角色对象
            addForm:{
                roleName:'',
                roleDesc:''
            },
            //查询用户信息
            editForm:{},
            //验证编辑角色规则
            editFormRules:{
                roleName:[
                    {required:true,message:'请输入角色名称',trigger:'blur'},
                    {min:3,max:10,message:'角色名称的长度在3·10个字符之间',trigger:'blur'}
                ],
                roleDesc:[
                    {required:true,message:'请输入角色描述',trigger:'blur'},
                    {min:6,max:15,message:'角色描述的长度在6·15个字符之间',trigger:'blur'}
                ],
            },
            //验证角色名称规则
            addFormRules:{
                roleName:[
                    {required:true,message:'请输入角色名称',trigger:'blur'},
                    {min:3,max:10,message:'角色名称的长度在3·10个字符之间',trigger:'blur'}
                ],
                roleDesc:[
                    {required:true,message:'请输入角色描述',trigger:'blur'},
                    {min:6,max:15,message:'角色描述的长度在6·15个字符之间',trigger:'blur'}
                ],
            },
            //编辑角色框
            editDialogVisible:false
        }
    },
    created(){
        this.getRolesList()
    },
    methods:{
        //获取所有角色的列表
       async getRolesList(){
         const {data:res} = await this.$http.get('roles')
         if(res.meta.status!==200){
             return this.$message.error('获取角色列表失败')
         }
         this.rolelist=res.data
         console.log(this.rolelist.id);
         console.log(this.rolelist);
        },
        //根据Id删除对应的权限
        async removeRightById(role,rightId){
            //弹框提示用户是否要删除
            const confirmResult = await 
             this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        if(confirmResult !=='confirm')
        return this.$message.info('取消了删除')
         const {data:res} = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
         if(res.meta.status!==200){
             return this.$message.error('删除权限失败')
         }
        //  this.getRolesList()
        role.children=res.data
        },
       // 展示分配权限的对话框
    async showSetRightDialog(role) {
      this.roleId = role.id
      // 获取所有权限的数据
      const { data: res } = await this.$http.get('rights/tree')

      if (res.meta.status !== 200) {
        return this.$message.error('获取权限数据失败！')
      }

      // 把获取到的权限数据保存到 data 中
      this.rightslist = res.data
      console.log(this.rightslist)

      // 递归获取三级节点的Id
      this.getLeafKeys(role, this.defKeys)

      this.setRightDialogVisible = true
    },
    // 通过递归的形式，获取角色下所有三级权限的id，并保存到 defKeys 数组中
    getLeafKeys(node, arr) {
      // 如果当前 node 节点不包含 children 属性，则是三级节点
      if (!node.children) {
        return arr.push(node.id)
      }

      node.children.forEach(item => this.getLeafKeys(item, arr))
    },
    //监听分配权限对话框的关闭事件
    setRightDialogClosed(){
        this.defKeys=[]
    },
     // 点击为角色分配权限
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ]

      const idStr = keys.join(',')

      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      )

      if (res.meta.status !== 200) {
        return this.$message.error('分配权限失败！')
      }

      this.$message.success('分配权限成功！')
      this.getRolesList()
      this.setRightDialogVisible = false
    },
    //添加角色
    addJuese(){
        this.$refs.addFormRef.validate(async valid=>{
             if(!valid) return
                //可以发起添加用户的网络请求
            const {data:res} = await this.$http.post('roles',this.addForm)
            console.log(res);
            if(res.meta.status!==201){
                return this.$message.error('添加用户失败')
            }
            this.$message.success('添加用户成功')
             this.addjuesedialogVisible=false
             this.getRolesList()
        })
    },
     //监听添加用户对话框的关闭事件
    addDialogClosed(){
        this.$refs.addFormRef.resetFields()
    },
    //查询角色信息
    async showJueseEditDialog(id){
        console.log(id);
        const {data:res} = await this.$http.get('roles/'+id)
        console.log(res);
        if(res.meta.status!==200){
            return this.$message.error('查询用户信息失败')
        }
        this.editForm=res.data
        // console.log(this.editForm.id);
        this.editDialogVisible=true
    },
    // 编辑角色
    editjueseInfo(){
        this.$refs.editFormRef.validate(async valid => {
            if(!valid) return
            //发起修改用户信息的数据请求
            const {data:res} = await this.$http.put('roles/'+this.editForm.roleId,{roleId:this.editForm.roleId,roleName:this.editForm.roleName,roleDesc:this.editForm.roleDesc})
            if(res.meta.status!==200){
                return this.$message.error("修改用户请求失败")
            }
            //关闭对话框
            this.editDialogVisible=false
            //刷新数据列表
            this.getRolesList()
            //提示修改成功
            this.$message.success('更新用户信息成功')
        })
    },
    //监听用户修改信息重置
    editDialogClosed(){
            this.$refs.editFormRef.resetFields()
    },
    //根据Id删除角色信息
    async removeJueSeById(id){
       //弹框询问用户是否删除数据
            const confirmResult = await  this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                 confirmButtonText: '确定',
                 cancelButtonText: '取消',
                 type: 'warning'
                }).catch(err => err)
                  //如果用户确认删除，则返回值为字符串 confirm
                   //如果用户确认删除，则返回值为字符串 cancel
                if(confirmResult !=='confirm'){
                    return this.$message.error('已取消删除')
                }
                const {data:res} = await this.$http.delete('roles/'+id)
                if(res.meta.status!==200){
                    return this.$message.error('删除用户失败')
                }
                this.$message.success('删除用户成功')
                this.getRolesList()      
    } 
    }
}
</script>
<style lang="less" scoped>
.el-tag {
    margin:7px;
}
.bdtop {
    border-top: 1px solid #eee;
}
.bdbottom {
    border-top: 1px solid #eee;
}
.vcenter {
    display: flex;
    align-items: center;
}
</style>